Mazda 3 1.6 diesel v Mazda 6 1.8 petrol

martineire

Hi guys I am currently driving a Mazda 6 1.8 petrol but am looking to trade in my 2007 Mazda 6 1.8 petrol for a 2007 Mazda 3 1.6 diesel, I have recently started a new job and due to traveling expenses (70 miles a day) I am looking to change over to a diesel. There is a dealer near by that has a Mazda 3 1.6 diesel with low mileage. Would this car save me a considerable amount of fuel? and would it be worth changing over?

Bpmull

It should do 50mpg easy enough. It's impossible to tell if its worth changing the car without knowing how much it will cost you to change from the 1.8 to 1.6.

corkgsxr

The 1.6 is not a trouble free engine. They have a few flaws.

martineire

Bought my Mazda 6 a year ago for €5000 he's looking for €2000 with my own, not sure what's the exact mileage on the 3 as he's getting the car in next week but he said it has low mileage.

Jesus.

martineire wrote: »

Hi guys I am looking to trade in my 2007 Mazda 6 1.8 petrol for a 2007 Mazda 3 1.6 diesel

Only in Ireland

Jesus.

martineire wrote: »

Bought my Mazda 6 a year ago for €5000 he's looking for €2000 with my own, not sure what's the exact mileage on the 3 as he's getting the car in next week but he said it has low mileage.

So let me get this straight. You're trading down from an 07 M6 to an 07 M3 ................................................................................................................ and you're paying two grand for the privilege!!!

Have you by any chance banged your head recently or perhaps stayed out in the Sun too long?

Bpmull

Op how many mpg is your 6 doing roughly if your doing that commute as if it was doing mod to late 30s I'd be slow to get rid of it. The 1.6 will cost you more to maintain no matter what way you look at it. However if your current car is doing mid 20s mpg (I don't know what the petrol version does) and you can get 50-55mpg out of the 1.6 then the savings are substantial. Also are you happy enough to go from a 6 to a 3 is the a big difference in spec between the two?

martineire

Fuel consumption is my only concern. Getting me from A to B with minimal cost. Spec does not concern me. If you have any other recommendations I am open to hearing. I'm looking to trade In my own car and have €2000 to spend

corkgsxr

Buy a 2002 model 2l diesel avensis. Iv a heavy foot and I can still get 55mpg
With the same 1.6 as the mazda in a berlingo I struggled to get much over 40mpg

Only very minor things went in the avensis over 4 years

The Pontiac

martineire wrote: »

Fuel consumption is my only concern. Getting me from A to B with minimal cost. Spec does not concern me. If you have any other recommendations I am open to hearing. I'm looking to trade In my own car and have €2000 to spend

I'd sell the Mazda 6 privately and then seek out a good 'straight' deal on a diesel car.

If fuel consumption is your only concern, then a 1.7 diesel (100bhp) Astra wouldn't be a bad choice. Still the old Isuzu engine, only modified/modernised.

CiniO

The Pontiac wrote: »

I'd sell the Mazda 6 privately (...)

Good luck with that

The Pontiac

CiniO wrote: »

Good luck with that

Yeah, might not be easy at all.

Still, I'd price it right and try and shift it fast. A dealer isn't going to offer you a great price either.

Sam Kade

martineire wrote: »

Hi guys I am currently driving a Mazda 6 1.8 petrol but am looking to trade in my 2007 Mazda 6 1.8 petrol for a 2007 Mazda 3 1.6 diesel, I have recently started a new job and due to traveling expenses (70 miles a day) I am looking to change over to a diesel. There is a dealer near by that has a Mazda 3 1.6 diesel with low mileage. Would this car save me a considerable amount of fuel? and would it be worth changing over?

Why don't you spend 1K and convert your mazda 6 to lpg? I am getting 38-40 mpg from a 07 mazda6 same as yours.

Old diesel

Just wondering there - you bought the 6 a year ago - so im wondering did you buy it because you wanted/needed the bigger car.

Its just that (obviously) the 3 is the next size down - so you may wish to consider something like an Avensis diesel (Mazda 6 diesels of that age have a terrible reputation and are to be avoided) - if you wish to retain the space etc of the bigger size car.

CiniO

Sam Kade wrote: »

Why don't you spend 1K and convert your mazda 6 to lpg? I am getting 38-40 mpg from a 07 mazda6 same as yours.

AFAIK those engines which are used on Mazda 6 and Ford Mondeo (both 1.8 and 2.0) are not great to work on LPG.

It's just some engines tolerate LPG better while others don't.
Unfortunately this 1.8 in Mazda 6 is the one that doesn't work well on LPG.

Sam Kade

CiniO wrote: »

AFAIK those engines which are used on Mazda 6 and Ford Mondeo (both 1.8 and 2.0) are not great to work on LPG.

It's just some engines tolerate LPG better while others don't.
Unfortunately this 1.8 in Mazda 6 is the one that doesn't work well on LPG.

Why is that?

CiniO

Sam Kade wrote: »

Why is that?

I don't know.
Just some engines are more suitable for LPG than others.
Those from Mazda 6 aren't.
Honda VTEC are even more unsuitable.

Sam Kade

CiniO wrote: »

I don't know.
Just some engines are more suitable for LPG than others.
Those from Mazda 6 aren't.
Honda VTEC are even more unsuitable.

I did a bit of research since a lot of engines post 2006 are not suitable for conversion because the valves will burn.

http://www.amrautos.co.uk/index.php/lpg-systems

CiniO

Sam Kade wrote: »

I did a bit of research since a lot of engines post 2006 are not suitable for conversion because the valves will burn.

http://www.amrautos.co.uk/index.php/lpg-systems

See, I couldn't find an appropriate link, but this explains a lot.

Generally speaking, there are cars out there which are very suitable for converting to LPG, and there are ones that aren't.
Mazda 6 is rather among the ones that aren't.

I had Fiat Bravo 1.6 on LPG and it run perfectly.

Also in general most 8v engines will do great on LPG, but there also might be exceptions.

Sam Kade

CiniO wrote: »

See, I couldn't find an appropriate link, but this explains a lot.

Generally speaking, there are cars out there which are very suitable for converting to LPG, and there are ones that aren't.
Mazda 6 is rather among the ones that aren't.

I had Fiat Bravo 1.6 on LPG and it run perfectly.

Also in general most 8v engines will do great on LPG, but there also might be exceptions.

I read on here where some fella got his jag converted in Cork and had nothing but problems after. The thing is that the garages converting cars will not tell you that certain cars are not suitable for conversion or that your car isn't suitable.

Tea 1000

martineire wrote: »

Fuel consumption is my only concern. Getting me from A to B with minimal cost. Spec does not concern me. If you have any other recommendations I am open to hearing. I'm looking to trade In my own car and have €2000 to spend

€2,000 will buy a lot of petrol for your current car, which is comfortable and reliable. You should really consider that.

Sam Kade

If the Mazda 6 does 38 mpg and the Mazda 3 does 50 mpg and diesel is €1.54/l and petrol is €1.58/l you will save 4.9 c/l with the better mpg and lower price. If you drive 18k/year it will take 2 years and 3 months before you will start saving. The tax might be slightly cheaper with the diesel but the cost of servicing will outweigh it.

martineire

Maybe ill just get a bigger car like the avensis 2litre diesel and trade my own car in against it. I've €2000 to play with also.

It's next to impossible to sell my own car privately. I've tried, had it up for €4000 :-(

Tea 1000

martineire wrote: »

Maybe ill just get a bigger car like the avensis 2litre diesel and trade my own car in against it. I've €2000 to play with also.

It's next to impossible to sell my own car privately. I've tried, had it up for €4000 :-(

You seem hell-bent on spending that 2000. As pointed out above, it'll keep your current car going for over 2 more years in fuel difference.

martineire

2007 Mazda 3 1.6 diesel 110ps Tourling 4DR is up for sale for €7900, low mileage 58000 miles. As stated before €2000 with my own, might not be a bad buy

unkel

martineire wrote: »

2007 Mazda 3 1.6 diesel 110ps Tourling 4DR is up for sale for €7900, low mileage 58000 miles. As stated before €2000 with my own, might not be a bad buy

Are you listening at all to some sound advice that is given to you?

Do you understand you won't save a cent by buying the Mazda 3 diesel? (See Sam Kades post)

Do you realise how reliable and completely trouble free your Mazda 6 petrol is compared to the Mazda 3 diesel?

Max Power1

no point in spending money for the same age of car but a model down

o.O the mind boggles! Only in ireland

martineire

Say for instant I sold my car for €4500 bought a skoda octiva 1.6 diesel for €5000 obviously trading down a year or two. How the hell wouldn't save money in the long run????? Considering the mileage I'm now clocking up

Jesus.

Max Power1 wrote: »

no point in spending money for the same age of car but a model down

o.O the mind boggles! Only in ireland

This this and this.

Max Power1

martineire wrote: »

Say for instant I sold my car for €4500 bought a skoda octiva 1.6 diesel for €5000 obviously trading down a year or two. How the hell wouldn't save money in the long run????? Considering the mileage I'm now clocking up

dont think you would get a 1.6 diesel for 5k tbh

The only octy you would get for 5k would be a 1.9

CiniO

martineire wrote: »

Say for instant I sold my car for €4500 bought a skoda octiva 1.6 diesel for €5000 obviously trading down a year or two. How the hell wouldn't save money in the long run????? Considering the mileage I'm now clocking up

And I don't think you would sell your mazda 6 for 4500.
Fact that there is plenty of those advertised for more, doesn't mean they are being sold for that money.

martineire

Ok 1.9?? Maybe even spend a few quid more and get the 1.6? I would make that few quid back in a year and then have a octiva at the end of it!!